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Volume 64 
Part 10 
Page m1236  
October 2008  

Received 28 August 2008
Accepted 29 August 2008
Online 6 September 2008

Key indicators
Single-crystal X-ray study
T = 123 K
Mean [sigma](C-C) = 0.003 Å
R = 0.035
wR = 0.088
Data-to-parameter ratio = 16.9
Details
Open access

Bis[[mu]-1,3-bis(4,5-dihydroimidazol-2-yl)benzene-[kappa]2N:N']bis[dichloridozinc(II)] N,N'-dimethylformamide disolvate

aDepartment of Chemistry and Chemical Engineering, Southeast University, Nanjing, People's Republic of China, and bDepartment of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, People's Republic of China
Correspondence e-mail: cep02chl@yahoo.com.cn

The title compound, [Zn2Cl4(C12H14N4)2]·2C3H7NO, is located on a centre of inversion with one half of a complex molecule and one dimethylformamide solvent molecule in the asymmetric unit. The ZnII ion is tetrahedrally coordinated by two organic ligands and two chloride ions. Each organic ligand acts as a bidentate ligand, connecting two ZnII ions, resulting in a dimeric [2:2] metallamacrocyclic structure. Adjacent molecules are further linked by N-H...Cl hydrogen bonds and the solvent is linked to the complex by N-H...O hydrogen bonds.

Related literature

For related structures, see: Ren et al. (2004[Ren, C.-X., Ye, B.-H., He, F., Cheng, L. & Chen, X.-M. (2004). CrystEngComm, 6, 200-206.], 2007[Ren, C.-X., Cheng, L., Ye, B.-H. & Chen, X.-M. (2007). Inorg. Chim. Acta, 360, 3741-3747.]).

[Scheme 1]

Experimental

Crystal data
  • [Zn2Cl4(C12H14N4)2]·2C3H7NO

  • Mr = 847.28

  • Monoclinic, P 21 /c

  • a = 8.1774 (11) Å

  • b = 8.5032 (12) Å

  • c = 27.097 (4) Å

  • [beta] = 92.890 (2)°

  • V = 1881.8 (4) Å3

  • Z = 2

  • Mo K[alpha] radiation

  • [mu] = 1.60 mm-1

  • T = 123 (2) K

  • 0.43 × 0.27 × 0.20 mm

Data collection
  • Bruker APEX CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 2000[Sheldrick, G. M. (2000). SADABS. University of Göttingen.]) Tmin = 0.546, Tmax = 0.740

  • 13375 measured reflections

  • 3659 independent reflections

  • 3215 reflections with I > 2[sigma](I)

  • Rint = 0.043

Refinement
  • R[F2 > 2[sigma](F2)] = 0.034

  • wR(F2) = 0.087

  • S = 1.05

  • 3659 reflections

  • 217 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.54 e Å-3

  • [Delta][rho]min = -0.48 e Å-3

Table 1
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
N1-H1C...Cl2i 0.88 2.74 3.241 (2) 117
N3-H3A...O1 0.88 2.12 2.870 (3) 143
Symmetry code: (i) x, y-1, z.

Data collection: SMART (Bruker, 2000[Bruker (2000). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SMART; data reduction: SAINT (Bruker, 2000[Bruker (2000). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXTL.


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT2778 ).


Acknowledgements

The authors thank the Program for Young Excellent Talents in Southeast University for financial support.

References

Bruker (2000). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Ren, C.-X., Cheng, L., Ye, B.-H. & Chen, X.-M. (2007). Inorg. Chim. Acta, 360, 3741-3747.  [ISI] [CSD] [CrossRef] [ChemPort]
Ren, C.-X., Ye, B.-H., He, F., Cheng, L. & Chen, X.-M. (2004). CrystEngComm, 6, 200-206.  [ISI] [CSD] [CrossRef] [ChemPort]
Sheldrick, G. M. (2000). SADABS. University of Göttingen.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [details]


Acta Cryst (2008). E64, m1236  [ doi:10.1107/S1600536808027773 ]

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